Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
1989-8-25
pubmed:abstractText
Protein conjugates of polysaccharides or their breakdown products are being used as improved "T-dependent" vaccines. We tried to define optimal characteristics of future conjugate vaccines by testing the immunogenicity of thirteen conjugates of alpha 1-6 dextran and chicken serum albumin in mice (BALB/c and CBA). All conjugates induced stronger antidextran antibody responses than the polysaccharide, and a fair proportion of these antibodies were IgG. However, there was a range of antigenicities. Consistently strong responses were obtained with conjugates that carried small dextran molecules (m.w. 1000 to 4000) coupled to the protein via the reducing end. Modification of such an "optimal" conjugate either by increasing the size of the saccharide to 40,000 Da, or by permitting multiple attachments of the saccharide molecule to the protein, reduced its antigenicity. Carbohydrate/protein ratios varying from 0.17 to 0.49 were associated with excellent antidextran responses.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Aug
pubmed:issn
0022-1767
pubmed:author
pubmed:issnType
Print
pubmed:day
15
pubmed:volume
143
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1259-64
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1989
pubmed:articleTitle
Antigenicity of dextran-protein conjugates in mice. Effect of molecular weight of the carbohydrate and comparison of two modes of coupling.
pubmed:affiliation
Department of Bacteriology and Immunology, University of Helsinki, Finland.
pubmed:publicationType
Journal Article, Comparative Study, Research Support, Non-U.S. Gov't